Question
A car is on a hilltop at the height of 300 m and has a mass of 1120 Kg. How much gravitational potential energy does the car have?
- 3.2KJ
- 3.2J
- 3292.8J
- 3292.8KJ
Hint:
GPE = mgh
The correct answer is: 3292.8KJ
h = 300m
m = 1120 KJ
GPE = mgh
= 300 
9.8 1120
= 3292.8 KJ
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¶The formula for Gravitational Potential Energy
⇒ GPE = m⋅g⋅h
where
m represents the mass in kilograms.
Gravitational acceleration, or g (9.8 on Earth)
The measurement of h above the ground is in meters.
A roller coaster is at the top of a 72 m hill and weighs 966 N. What is its gravitational potential energy?
The energy that an object has or acquires when its position changes due to being in a gravitational field are known as gravitational potential energy. Gravitational potential energy can be defined as energy that has a connection to gravitational force or gravity.
Gravitational potential is the effort required to move a unit test mass from infinity into the source mass's gravitational field. Both are held above the table, with one at the table. We can now state that the pencil that is higher than the table will have more gravitational potential energy.
¶The formula for Gravitational Potential Energy
⇒ GPE = m⋅g⋅h
where
m represents the mass in kilograms.
Gravitational acceleration, or g (9.8 on Earth)
The measurement of h above the ground is in meters.
